Want a perfectly-flushed complexion? You need a great blush. Here are the ones that'll help you glow -- and the ones that are so bad they'll turn your cheeks red with frustration

If there's one product in your makeup bag that can immediately brighten your complexion, it's blush. In fact, most makeup artists will tell you that your face makeup isn't complete until you've dusted a rosy glow across your cheeks. And then, presto change-o: What once was tired, sallow-looking skin is healthy and radiant.

Sweeping blush across your cheeks sounds easy enough, right? Well, it becomes a bit more complicated when the blush you're working with is a big, fat failure. When it comes to blush, the finished look will only be as beautiful as the product you put on your face. No amount of technique can save your makeup from a too chalky, oily, or Ronald McDonald-worthy color.

To help you find the most beautiful blushes on the market -- and steer clear of the absolute worst -- we read thousands of blush reviews and tallied up the scores. Keep reading so you know what products work, and which ones to avoid.

And for a quick brush up (pun intended!) on your technique, makeup artist Glenn Marziali says to always remember this two-finger rule when trying to achieve a natural-looking flush: Place your index and middle fingers vertically on your face away from the nose to find the spot directly under your pupils. Apply blush on the apple of the cheek from that spot outwards, and stroke the blush along the cheekbones.